Dec 17 17:12:38.775 INFO checking rcoverick/rust_dailyprogrammer against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 17:12:38.775 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/rcoverick/rust_dailyprogrammer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 17:12:39.174 INFO [stdout] e80521430c1f3e9b5bcce5232caf9d472242af65017d1e292a6415219858407d
Dec 17 17:12:39.176 INFO running `"docker" "start" "-a" "e80521430c1f3e9b5bcce5232caf9d472242af65017d1e292a6415219858407d"`
Dec 17 17:12:40.103 INFO [stderr]     Checking dailyprogrammer v0.1.0 (/opt/crater/workdir)
Dec 17 17:12:40.336 INFO [stderr] warning: doc comment not used by rustdoc
Dec 17 17:12:40.336 INFO [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:3:5
Dec 17 17:12:40.336 INFO [stderr]   |
Dec 17 17:12:40.336 INFO [stderr] 3 |     ///Numerals need to be in order. Each pair of numerals can be swapped to form a different number. 
Dec 17 17:12:40.336 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:12:40.336 INFO [stderr]   |
Dec 17 17:12:40.336 INFO [stderr]   = note: #[warn(unused_doc_comments)] on by default
Dec 17 17:12:40.336 INFO [stderr] 
Dec 17 17:12:40.336 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 17 17:12:40.336 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
Dec 17 17:12:40.336 INFO [stderr]    |
Dec 17 17:12:40.336 INFO [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
Dec 17 17:12:40.336 INFO [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
Dec 17 17:12:40.336 INFO [stderr]    |
Dec 17 17:12:40.336 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 17 17:12:40.336 INFO [stderr] 
Dec 17 17:12:40.341 INFO [stderr] warning: doc comment not used by rustdoc
Dec 17 17:12:40.341 INFO [stderr]  --> src/challenge/easy/pandigital_roman_numbers.rs:3:5
Dec 17 17:12:40.341 INFO [stderr]   |
Dec 17 17:12:40.341 INFO [stderr] 3 |     ///Numerals need to be in order. Each pair of numerals can be swapped to form a different number. 
Dec 17 17:12:40.341 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:12:40.341 INFO [stderr]   |
Dec 17 17:12:40.341 INFO [stderr]   = note: #[warn(unused_doc_comments)] on by default
Dec 17 17:12:40.341 INFO [stderr] 
Dec 17 17:12:40.368 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 17 17:12:40.368 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:20:32
Dec 17 17:12:40.368 INFO [stderr]    |
Dec 17 17:12:40.368 INFO [stderr] 20 |     io::stdin().read_to_string((&mut buf)).unwrap();
Dec 17 17:12:40.368 INFO [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
Dec 17 17:12:40.368 INFO [stderr]    |
Dec 17 17:12:40.368 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 17 17:12:40.368 INFO [stderr] 
Dec 17 17:12:40.701 INFO [stderr] warning: variable does not need to be mutable
Dec 17 17:12:40.701 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:38:41
Dec 17 17:12:40.701 INFO [stderr]    |
Dec 17 17:12:40.701 INFO [stderr] 38 |     res.chunks_mut(width as usize).map(|mut x| x.reverse()).count();
Dec 17 17:12:40.701 INFO [stderr]    |                                         ----^
Dec 17 17:12:40.701 INFO [stderr]    |                                         |
Dec 17 17:12:40.701 INFO [stderr]    |                                         help: remove this `mut`
Dec 17 17:12:40.701 INFO [stderr]    |
Dec 17 17:12:40.701 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 17:12:40.701 INFO [stderr] 
Dec 17 17:12:40.712 INFO [stderr] warning: variable does not need to be mutable
Dec 17 17:12:40.712 INFO [stderr]   --> src/challenge/intermediate/pgm_manipulation.rs:38:41
Dec 17 17:12:40.712 INFO [stderr]    |
Dec 17 17:12:40.712 INFO [stderr] 38 |     res.chunks_mut(width as usize).map(|mut x| x.reverse()).count();
Dec 17 17:12:40.712 INFO [stderr]    |                                         ----^
Dec 17 17:12:40.712 INFO [stderr]    |                                         |
Dec 17 17:12:40.712 INFO [stderr]    |                                         help: remove this `mut`
Dec 17 17:12:40.712 INFO [stderr]    |
Dec 17 17:12:40.712 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 17:12:40.712 INFO [stderr] 
Dec 17 17:12:40.912 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Dec 17 17:12:41.282 INFO running `"docker" "inspect" "e80521430c1f3e9b5bcce5232caf9d472242af65017d1e292a6415219858407d"`
Dec 17 17:12:41.466 INFO running `"docker" "rm" "-f" "e80521430c1f3e9b5bcce5232caf9d472242af65017d1e292a6415219858407d"`
Dec 17 17:12:41.700 INFO [stdout] e80521430c1f3e9b5bcce5232caf9d472242af65017d1e292a6415219858407d